s7 300 first time user en

SIMATIC S7-300

Getting Started for First Time Users

Order No.: 6ZB5310-0NC02-0BA0

04/2007A5E01094750-01

Safety GuidelinesThis manual contains notices you have to observe in order to ensure your personal safety, as well as to prevent damage to property. The notices referring to your personal safety are highlighted in the manual by a safety alert symbol, notices referring only to property damage have no safety alert symbol. These notices shown below are graded according to the degree of danger.

If more than one degree of danger is present, the warning notice representing the highest degree of danger will be used. A notice warning of injury to persons with a safety alert symbol may also include a warning relating to prop-erty damage.

Qualified PersonnelThe device/system may only be set up and used in conjunction with this documentation. Commissioning and oper-ation of a device/system may only be performed by qualified personnel. Within the context of the safety notes in this documentation qualified persons are defined as persons who are authorized to commission, ground and label devices, systems and circuits in accordance with established safety practices and standards.

Dangerindicates that death or severe personal injury will result if proper precautions are not taken.

Warningindicates that death or severe personal injury may result if proper precautions are not taken.

Cautionwith a safety alert symbol, indicates that minor personal injury can result if proper precautions are not taken.

Cautionwithout a safety alert symbol, indicates that property damage can result if proper precautions are not taken.

Noticeindicates that an unintended result or situation can occur if the corresponding information is not taken into account.

Prescribed UsageNote the following:

TrademarksAll names identified by are registered trademarks of the Siemens AG. The remaining trademarks in this publica-tion may be trademarks whose use by third parties for their own purposes could violate the rights of the owner.

Disclaimer of LiabilityWe have reviewed the contents of this publication to ensure consistency with the hardware and software described. Since variance cannot be precluded entirely, we cannot guarantee full consistency. However, the infor-mation in this publication is reviewed regularly and any necessary corrections are included in subsequent editions.

WarningThis device may only be used for the applications described in the catalog or the technical description and only in connection with devices or components from other manufacturers which have been approved or recommended by Siemens. Correct, reliable operation of the product requires proper transport, storage, positioning and assembly as well as careful operation and maintenance.

Siemens AGAutomation and DrivesPostfach 48 4890437 NRNBERGGERMANY

Order No. 6ZB5310-0NC02-0BA004/2007

Copyright Siemens AG .Technical data subject to change

1SIMATIC S7-300 Getting Started for First Time UsersGetting Started, 04/2007, 6ZB5310-0NC02-0BA0

Contents

1 Welcome . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 Preparing the PC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83 Installing and wiring the hardware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 143.1 What components are required?. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 153.2 Installing the components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 163.3 Wiring the components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 183.4 Commissioning the hardware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 254 Configuring the control in STEP 7 Lite. . . . . . . . . . . . . . . . . . . . . . . . . . . 324.1 What is a STEP 7 Lite project? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 334.2 Opening a STEP 7 Lite project . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 344.3 Reproducing the module configuration in STEP 7 Lite. . . . . . . . . . . . . . . . . . 354.4 Establishing the online connection between the PC and CPU 312C . . . . . . . . 414.5 Downloading and checking the module configuration to the CPU 312C. . . . . . 425 Opening the program on the PC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 465.1 What is a program?. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 475.2 Opening a program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 486 Performing a test run . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 506.1 Downloading the project to the CPU 312C . . . . . . . . . . . . . . . . . . . . . . . . . . 516.2 Starting the test run . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 527 Congratulations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 568 Additional information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 588.1 Diagnostics / correction of errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 598.2 Additional documentation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 608.3 SIMATIC Technical Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62

21 Welcome


Welcome to the S7-300 Getting Started for First Time Users. Using an example of a conveyor belt, we will illustrate how easy it is to control a drive motor with an S7-300. You will use the S7-300 to start the motor, switch the direction of rota-tion, and then stop the motor again.To accomplish this, you will perform the following tasks:

Install the required software.

Install and wire the required control components.

Configure the hardware using the STEP 7 Lite software, and download a con-trol program.

Start the motor.The example will take approximately 1 hour to implement, depending on your prior knowledge.

1 Welcome

4

SIMATIC S7-300 Getting Started for First Time UsersGetting Started, 04/2007, 6ZB5310-0NC02-0BA0

ValidityThese instructions apply to the following CPUs:

PrerequisitesYou are proficient in working with the Microsoft WindowsTM operating system.You are familiar with the basics of electronics and electrical engineering.

Abbreviation Order no.

You will need a micro memory card (MMC) for operation

As of firmware version

312C 6ES7312-5BE03-0AB0 X V 2.6

WarningDangerous currents and voltages!Serious bodily injury and damage to machinery and equipment can occur if you do not observe the safety and accident prevention regulations, e.g., IEC 204 (emergency STOP devices).Operation of an S7-300 in plants or systems is governed by special rules and regulations, depending on the specific field of application.


Materials and toolsIn order to install the conveyor belt control, you will need the following materials and tools:

The S7-300 starter kit contains the following:

Quantity ItemOrder number (Siemens)

1 Mounting rail 6ES7390-1AB60-0AA0

1 CPU 312C 6ES7312-5BE03-0AB0

1 SIMATIC Micro Memory Card 6ES7953-8LF11-0AA0

1 Multipin front panel connector with screw-type contacts

6ES7392-1AM00-0AA0

1 PC Adapter USB with driver software 6ES7972-0CB20-0XA0

1 Manual Collection containing electronic manuals for the various SIMATIC products

6ES7998-8XC01-8YE0

1 Welcome

6


In addition, you will need the following components:

Quantity ItemOrder number (Siemens)

1 Power supply 6ES7307-1EA00-0AA0

1 PC with USB interface -

1 STEP 7 Lite V3.0 + Service Pack 2 Can be downloaded free of charge on the Internet

various M6 screws and nuts (length depends on installa-tion location) with suitable screwdriver/wrench

Commercially available

1 Screwdrivers with 3.5 mm and 4.5 mm blade widths


1 Diagonal cutters and wire stripping tool Commercially available

1 Crimp tool Commercially available

X m Cable with 10 mm2 cross-section for grounding the mounting rail and suitable cable lug for M6 screw. Length of cable depends on local condi-tions


Approxi-mately 2 m

Flexible cable with 1 mm2 cross-section and suitable ferrules with insulated collar, length 6 mm


X m 3-wire flexible network cable (230/120 VAC) with grounding-type socket plug; length dependent on local conditions and suitable ferrules with insulating collar


4 Single-pole momentary contact switch (24 V, 2 A)


1 Motor, including accessories (optional)You can find technical specifications for the CPU 312C in the CPU 31xC and CPU 31x: Technical Specifications Manual available on the Internet at http://www.siemens.com/automa-tion/service&support.


NoteYou can also use the CPU 312C with an extra-low voltage that is safely isolated from the supply system. Safe isolation can be achieved, for example, in accordance with VDE 0100 Part 410 / HD 384-4-41 / IEC 364-4-41 or VDE 0805 / EN 60950 / IEC 950 or VDE 0106 Part 101.

82 Preparing the PC


Installing STEP 7 LiteIn order to create the control program for the drive motor on your PC, you must install the STEP 7 Lite software. The latest version of STEP 7 Lite including ser-vice pack can be found on the Internet at:http://support.automation.siemens.com/WW/view/en/24372175

Open the installation file and follow the instructions.

Installing the driver for the PC Adapter USBUse the PC Adapter USB to establish the connection between the CPU 312C and the PC. The PC Adapter USB connects the USB interface of the PC with the MPI interface of the CPU 312C, thus enabling communication. In order to use the PC Adapter USB, you must install the necessary driver.

Insert the Driver CD for the PC Adaptor USB and follow the instructions.

NoteIf the CD does not start up automatically, you can start the setup program by double-clicking the Setup.exe file in the main directory of the CD.

2 Preparing the PC

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Setting the interface1. Open the dialog for setting the PG/PC interface.

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2. For the interface, select PC Adapter(MPI). This connection property enables communication between your PC and the MPI interface of the CPU 312C.

2 Preparing the PC

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3. Configure the connection to the USB interface. This connection property enables communication between the MPI interface of the CPU 312C and your PC.

You have installed STEP 7 Lite and the software for the PC Adapter USB and configured the interfaces between the PC Adapter USB and the CPU 312C. Next, you will install the control components on the mounting rail.

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3 Installing and wiring the hardware

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3.1 What components are required?

In order to control the conveyor belt, you will need the components shown:

Power supply for the control components

CPU 312C with integrated input and output module

Mounting rail for installing the modules

Momentary contact switch

Motor for driving the conveyor belt (optional)

PC with STEP 7 Lite including Service Pack 2

PC Adapter USB for connecting the PC with the CPU 312C

NoteIf you do not have a motor, you can still implement the example. In this case, you will observe the LEDs on the digi-tal outputs of the CPU 312C.


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3.2 Installing the componentsIn this section, we show you how to:

Install and ground the mounting rail

Install the modules on the mounting rail

Insert the front panel connector

Installing and grounding the mounting rail1. Screw the mounting rail to the

subsurface. Use two M6 screws for this.

2. Connect the mounting rail to the ground wire.

The prescribed minimum cross-section for the cable to the protective conductor is 10 mm2.Note the following information when installing the mounting rail:

Make sure to maintain a clearance of at least 40 mm above and below the mounting rail. This is needed to satisfy the requirements for thermal conditions (heat dissipation and ventilation of the module) and to facilitate the installation (mounting and removing, wiring).

If the subsurface is a grounded metal plate or a grounded device panel, make sure you have a low resistance connection between the mounting rail and the subsurface. This produces a uniform reference potential.

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Installing modules on the mounting rail1. Install the power supply, tighten-

ing the screws hand-tight.2. Install the CPU 312C.

3. Insert the front panel connector into the CPU 312C until it engages.The front panel connector still protrudes from the module in this wiring posi-tion, and is not yet connected to the module. This position makes it easier for you to complete the wiring.


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3.3 Wiring the componentsWire the system components to the CPU 312C. This enables the CPU 312C to detect and evaluate the state of the components with the help of the control pro-gram.

The momentary-contact switches are signal transmitters. You connect the sig-nal transmitters to the input terminals of the CPU 312C. The input terminals are labeled with DI.

The motor is the signal receiver. You connect the signal receiver to the output terminals of the CPU 312C. The output terminals are labeled with DO.

The entire control loop is connected to the power supply via the CPU 312C.

Preparing the cables1. Cut the cables to the desired

length.2. Remove the insulation and press

the ferrules onto the ends of the cable.

WarningDangerous electrical voltages! Death or serious bodily injury and damage to machinery and equipment can occur if you do not observe the follow-ing safety precautions.Before starting work, discon-nect the system and the device from the power supply.

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Wiring the CPU 312C and the power supply1. Prepare the power cable. 2. Connect the power cable to the

power supply.

3. Secure the power cable. 4. Wire the power supply to the CPU 312C.

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Wiring the momentary contact switches1. Connect the momentary contact switches to the digital inputs.

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Wiring the motor1. Connect the power supply for the digital inputs.

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2. Wire the motor, if available. This step is optional.

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Connecting the front panel connector1. Establish contact between the front panel connector and the contacts of

the CPU 312C, and close the front doors.

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Checking the line voltage setting1. Check that the line voltage selec-

tor switch is set to the correct line voltage.

2. If necessary, change the switch position for the line voltage.

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3.4 Commissioning the hardwareWhen you commission the hardware, you establish the connections between the CPU 312C and your PC. You supply power to the installed equipment and test for proper wiring.

Connecting the CPU 312C and the PC1. Connect the USB cable to the PC Adapter and your PC.

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2. Close the front panel.

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Supplying power to the CPU 312C1. Connect the supply cable to the supply system.

WarningUnanticipated operation can cause death or personal injury! Death or serious bodily injury and damage to machinery and equipment can occur if you do not observe the follow-ing safety precautions.Always put the CPU in STOP before turning on power.


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2. Insert the SIMATIC Micro Memory Card into the slot on the front of the CPU 312C.

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3. Set the main switch of the power supply to ON.

The DC24V LED on the power supply will light up. All LEDs on the CPU 312C will light up briefly, and the DC5V LED and the STOP LED will remain lit.


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Testing the connectionsNow, test your wiring to verify that it is functioning properly.For this purpose, take turns pressing the momentary contact switches and observe the LEDs on the inputs of the CPU. Whenever an input is activated, the corresponding LEDs always light up.

Press the green momentary contact switch for Motor ON. The LED of input 0.0 (terminal 2) will light up.

Press the red momentary contact switch for Motor OFF. The LED of input 0.1 (terminal 3) will light up.

Press the right momentary contact switch for Clockwise rotation. The LED of input 0.2 (terminal 4) will light up.

Press the left momentary contact switch for Counterclockwise rotation. The LED of input 0.3 (terminal 5) will light up.

You have installed, wired, and tested all components. Next, you will create the control structure in STEP 7 Lite and download the configuration to the CPU 312C.

NoteTo make the example easier to follow, we will use colored momentary contact switches. You can implement the exam-ple with commercially avail-able momentary contact switches of any color.

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32

4 Configuring the control in STEP 7 Lite

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4.1 What is a STEP 7 Lite project?Various tasks are involved in creating an automation solution with STEP 7 Lite. STEP 7 Lite combines all of the data and tasks of the control into a project. This data is stored in a STEP 7 Lite project file (*.k7p).In our example, this data includes:

Modules and their addresses in the hardware configuration.

Control logic in the form of a control program.

TipFor further information about STEP 7, refer to the online help.


34


4.2 Opening a STEP 7 Lite projectIn order to configure the control in STEP 7 Lite, you must open the example project provided and familiarize yourself with the program interface.

Opening the conveyor project1. Start STEP 7 Lite.

2. Insert the CD with the example project, and open the example project: conveyor.k7p

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4.3 Reproducing the module configuration in STEP 7 Lite

In the STEP 7 Lite project, you will create all of the modules you installed on the mounting rail.

Creating the module configuration1. Create a new S7-300 station.

Four mounting rails are automatically displayed.


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2. Insert the power supply with the appropriate type designation and order number.

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3. Insert the CPU with the appropriate type designation and order number.


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The modules are displayed both in the hardware view and in the configuration table.

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Setting the parameters of the CPU 312CYou can set numerous parameters for each of the modules. As an example, we will modify the retention behavior of the CPU 312C.

1. Set the amount of retentive bit memory to 0.

The retention behavior of the CPU 312C determines whether or not the values of internal memory bits are retained after a power failure or memory reset on the CPU 312C.You can use the retention behavior to ensure that the motor does not start up in an uncontrolled manner after a power failure.


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Saving the project1. Save the project.

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4.4 Establishing the online connection between the PC and CPU 312C

You must establish an online connection between the PC and CPU 312C for the following:

Downloading and testing the control programs

Displaying and changing the operating state of the CPU 312C

Displaying the module status

Hardware diagnosticsTo establish an online connection, you must connect the PC and CPU 312C to one another via the MPI interface.

Establishing the online connectionSTEP 7 Lite attempts to establish the online connection on startup.If the connection exists, the operating state of the CPU 312C is displayed in the status bar as STOP.

If no connection exists, the status bar displays Disconnected.

1. If the connection does not exist, establish the connection between the CPU 312C and your PC.


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4.5 Downloading and checking the module configuration to the CPU 312C

Before you download the module configuration to the CPU 312C, you will delete the old configuration from the CPU. After downloading, you will check whether downloadable system data were able to be generated from your module configu-ration.

Performing a memory reset on the CPU 312C1. Delete the old program blocks and configurations from the CPU 312C.

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Downloading the module configuration to the CPU 312C1. Download the module configuration to the CPU 312C. This transfers the

current module parameters to the CPU.


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Checking the module configuration1. Check to make sure that the configuration data on the PC (offline)

matches the configuration data on the CPU 312C (online). STEP 7 Lite then checks whether downloadable system data can be generated from the current configuration.

You can see detailed results of the hardware comparison below the configuration table. All modules must be identical in order for the proper inputs and outputs to be addressed when the control program runs.

45


You have created the control structure in STEP 7 Lite and downloaded the con-figuration to the CPU 312C. Next, you will open the example program for control-ling the conveyor belt drive.

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5 Opening the program on the PC

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5.1 What is a program?The program describes how the signals from the momentary contact switches are logically linked to the outputs. The outputs of the CPU 312C will be used to control the drive motor of the conveyor belt.The program is part of the STEP 7 Lite project. Each program consists of organi-zation blocks (OBs). The program for the conveyor is stored in OB1. The program consists of networks. The networks, in turn, consist of normally-closed and normally-open contacts and coils.

5 Opening the program on the PC

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5.2 Opening a programThe program for controlling the conveyor belt is stored in the conveyor project.

1. Open the program.

The program appears in the form of ladder logic (LAD). The operations are rep-resented as graphical symbols.

LAD is a graphical program-ming language similar to a cir-cuit diagram.The inputs are represented as normally-closed and normally-open contacts, and the out-puts are represented as coils.

49


You have configured the control and downloaded the control program in STEP 7 Lite. Next, you will download the entire STEP 7 Lite project to the CPU 312C and start a test run. The test run demonstrates the interaction between the wired ter-minals, the LED displays, and the program, which logically links the inputs and outputs to one another.

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6 Performing a test run

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6.1 Downloading the project to the CPU 312C1. Download the hardware configuration and the program to the CPU 312C.


52


6.2 Starting the test run1. Set the mode switch of the CPU 312C to RUN.

The STOP LED goes out. The RUN LED starts to flash and then displays a continuous light.

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2. Press the green momentary con-tact switch to start the motor.The output LED 0.3 lights up and remains lit. The input LED 0.0 lights up briefly when the momentary contact switch is activated.The motor is ready to start.

3. Press and hold down the momen-tary contact switch for clockwise rotation.The output LED 0.0 lights up. The input LED 0.2 lights up.

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4. Release the momentary contact switch for clockwise rotation and press and hold down the momen-tary contact switch for counter-clockwise rotation.The output LED 0.5 lights up. The input LED 0.3 lights up.

5. Release the momentary contact switch for counterclockwise rota-tion and press the momentary contact switch for stopping the motor.The output LED 0.3 goes out. The input LED 0.1 lights up briefly when the momentary contact switch is activated.The motor is switched off.

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56

7 Congratulations

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With the completion of the test run, you have successfully performed the tasks in S7-300 Getting Started - First Time User and have created an executable con-trol for your plant.If you wish, you can add to the control on your own and implement your own control tasks.Want to know more about SIMATIC S7-300? Contact us. Additional information is available through our Service & Support. Visit us on the Internet at:http://www.siemens.com/automation/serviceAdditional addresses and contact information are provided on the following pages.

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8 Additional information

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8.1 Diagnostics / correction of errorsIncorrect operation, faulty wiring, or an incorrect hardware configuration can cause errors. The CPU 312C displays such errors with the group error LED SF following a memory reset. For information on how to analyze errors and mes-sages, refer to the S7-300, CPU 31xC and CPU 31x: Installation operating instructions. This manual is included in the SIMATIC Manual Collection, which is enclosed in the S7-300 starter kit.The PC Adapter USB uses LEDs to indicate error states. To diagnose these errors, refer to the electronic PC Adapter USB Manual. You can find this man-ual on the installation CD for the PC Adapter USB.


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8.2 Additional documentationFor STEP 7 Lite and the PC Adapter USB:You will find the following documents on the CD and, after installation of STEP 7 Lite, via the start menu Start > SIMATIC > Documentation > English:

The electronic Getting Started with STEP 7 Lite Manual describes the main operating sequences using hands-on exercises.

The electronic Programming with STEP 7 Lite Manual imparts background knowledge for implementing control tasks with STEP 7 Lite.

The electronic PC Adapter USB Manual describes installation and commis-sioning of the PC Adapter.

You can also use the online help in STEP 7 Lite. To do so, press the key.

61


For the S7-300 automation system:

A Manual Collection on DVD is provided in the S7-300 starter kit. It contains manuals in electronic form for various SIMATIC products. Examples include the S7-300, CPU 31xC and CPU 31x: Installation operating instructions and the CPU 31xC and CPU 31x: Technical Specifications Manual.

For information about the S7-300, see the list below or go online to http://support.automation.siemens.com/WW/view/en/ and enter the associ-ated entry ID.

Name of manual Description

ManualCPU 31xC and CPU 31x, Technical Specifi-cationsEntry ID: 12996906

Operator control and display elements, communication, memory concept, cycle and response times, technical specifica-tions

Operating InstructionsS7-300, CPU 31xC and CPU 31x: Installa-tionEntry ID: 12996906

Project design, installation, wiring, address-ing, commissioning, maintenance and test functions, diagnostics and troubleshooting.

Manual CPU 31xC: Technological FunctionsEntry ID: 12429336 CD with examples

Description of the technological functions: positioning, counting, point-to-point cou-pling, closed-loop control.The CD contains examples of the techno-logical functions.

ManualS7-300 Automation System:Module DataEntry ID: 8859629

Descriptions of functions and technical specifications of the signal modules, power supplies, and interface modules.


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8.3 SIMATIC Technical SupportHow to contact Technical Support for all A&D products

By e-mail: [email protected]

By phone: +49 (0) 180 5050 222

By fax: +49 (0) 180 5050 223You can find additional information about our technical support on the Internet athttp://www.siemens.com/automation/service

Service & Support on the InternetIn addition to our documentation, we offer a comprehensive online knowledge base on the Internet at:http://www.siemens.de/automation/csi_en_WW/productThere you will find:

The latest product information, FAQs, and downloads.

Our newsletter, providing you with the latest information about your products.

A Knowledge Manager to find the right documents for you.

Our bulletin board, where users and specialists share their knowledge world-wide.

Your local contact for Automation & Drives in our Contacts Database (see Contacts & Partners).

You will find information on local service, repairs, spares and much more under Services.

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If you want to find out even more about our products, refer to the Internet addresses listed below:

SIMATIC Controllers:www.siemens.com/simatic-controller

SIMATIC automation systems:www.siemens.com/simatic

Totally Integrated Automation:www.siemens.com/totally-integrated-automation

SIPLUS extreme - Hardening and Finishing:www.siemens.de/siplus

Service & Support:http://www.siemens.com/automation/csi_en_WW/support

SIMATIC partners:www.siemens.com/automation/partners

Order or download additional informative material:www.siemens.de/simatic/druckschriften > English

SIMATIC Guide manuals:www.siemens.com/simatic-doku

A&D Mall online ordering system:www.siemens.com/automation/mall


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1 Welcome2 Preparing the PC3 Installing and wiring the hardware3.1 What components are required?3.2 Installing the components3.3 Wiring the components3.4 Commissioning the hardware

4 Configuring the control in STEP 7 Lite4.1 What is a STEP 7 Lite project?4.2 Opening a STEP 7 Lite project4.3 Reproducing the module configuration in STEP 7 Lite4.4 Establishing the online connection between the PC and CPU 312C4.5 Downloading and checking the module configuration to the CPU 312C

5 Opening the program on the PC5.1 What is a program?5.2 Opening a program

6 Performing a test run6.1 Downloading the project to the CPU 312C6.2 Starting the test run

7 Congratulations8 Additional information8.1 Diagnostics / correction of errors8.2 Additional documentation8.3 SIMATIC Technical Support

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